Unrestricted Use
CC BY
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Conditional Remix & Share Permitted
CC BY-NC-SA
In this activity, learners conduct an oxidation experiment that turns old pennies bright and shiny. Learners soak 20 dull, dirty pennies in a bowl of salt and vinegar for five minutes. They rinse half the pennies with water, then compare the rinsed pennies to the unrinsed after all pennies sit and dry for about an hour. Learners also observe what happens when they submerge a screw and nail in the liquid compared to a nail only half-way submerged.
- Subject:
- Chemistry
- Physical Science
- Material Type:
- Activity/Lab
- Provider:
- Exploratorium
- Author:
- Ellen Klages
- Exploratorium
- Jason Gorski
- Linda Shore
- Pat Murphy
- The Exploratorium
- Date Added:
- 12/07/1997
Conditional Remix & Share Permitted
CC BY-NC-SA
How elements relate to atoms. The basics of how protons, electrons, and neutrons make up an atom. Created by Sal Khan.
- Subject:
- Applied Science
- Biology
- Chemistry
- Life Science
- Physical Science
- Material Type:
- Lesson
- Provider:
- Khan Academy
- Provider Set:
- Khan Academy
- Author:
- Sal Khan
- Date Added:
- 07/31/2011
Unrestricted Use
CC BY
Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.
- Subject:
- Chemistry
- Physical Science
- Material Type:
- Simulation
- Provider:
- University of Colorado Boulder
- Provider Set:
- PhET Interactive Simulations
- Author:
- Emily Moore
- John Blanco
- Kathy Perkins
- Kelly Lancaster
- Patricia Loblein
- Robert Parson
- Sam Reid
- Date Added:
- 05/13/2011
Read the Fine Print
Educational Use
This lesson introduces the concept of electricity by asking students to imagine what their life would be like without electricity. Two main forms of electricity, static and current, are introduced. Students learn that electrons can move between atoms, leaving atoms in a charged state.
- Subject:
- Applied Science
- Career and Technical Education
- Electronic Technology
- Engineering
- Material Type:
- Activity/Lab
- Lesson Plan
- Provider:
- TeachEngineering
- Provider Set:
- TeachEngineering
- Author:
- Daria Kotys-Schwartz
- Denise Carlson
- Malinda Schaefer Zarske
- Date Added:
- 09/18/2014
Unrestricted Use
Public Domain
Students research the structure of salt to understand the difference between molecular compounds and ionic compounds
- Subject:
- Chemistry
- Physical Science
- Material Type:
- Activity/Lab
- Assessment
- Provider:
- NASA
- Date Added:
- 02/16/2011